Python 3.6：リストインデックスは、タプルではなく、整数またはスライスでなければなりません。

Question

私はPythonには新しく、空白クイズに記入しようとしています。私は別のフォーラムでこのエラーを調べても、自分のコードを修正することはできません。私はこれを行うことができるはずだと思うが、私は答えを見ることができない。エラーは、コードの最後にあるdef game_start関数にあります。ここでrepl.it https://repl.it/LN4r/5 .Thisはエラーです：

Traceback (most recent call last): 
File "python", line 62, in <module> 
File "python", line 59, in game_start 
TypeError: list indices must be integers or slices, not tuple 

はここにある私のコードは次のとおりです。

# quizzes below are in order, top to bottom, easy, medium, hard 
quizzes = [ 
    ['''The keyword def is used to define a ___1___ . A function can be used to replace many instances of a ___2___ in a program. The use of if and ___3___ are helpful in declaring an either/or scenario. When you want a loop to be run until a condition is met, the ___4___ is helpful.'''], 
['''When writing Python code, indentation must be ___1___ spaces. Also, a ___2___ must be placed at the end of a function. The ___3___ command can be used to query the user. When using parentheses, double or ___4___ ones can be used.'''], 
['''What does "d = {}" create? ___1___\n In this example: "x = {"apple":2}" What is the key? ___2___\n What will: "wheel".replace("e","l") output? ___3___\n list1 = [4,2] What is list1 * 2?(include brackets)___4___'''] 
    ] 

# answers for all quizzes. 
quiz_answers = [ 
    ['dictionary', '2', 'whlll', '[4,2,4,2]'], 
    ['four', 'colon', 'input', 'single'], 
    ['function', 'loop', 'else', 'while'] 
    ] 

# player level selection 
def level_chosen(): 
    chosen_level = str(input('Please select a level: easy, medium, hard: ')) 
    if chosen_level == 'easy': 
     print("You have chosen easy. Let's play!") 
     return quizzes[0], quiz_answers[0] 

    elif chosen_level == 'medium': 
     print("You have chosen medium. Let's play!") 
     return quizzes[1], quiz_answers[1] 

    elif chosen_level == 'hard': 
     print("You have chosen hard. Let's play!") 
     return quizzes[2], quiz_answers[2] 

    else: 
     print('Not a valid option. Try again.') 
     return level_chosen() 

def fill_in_blanks(chosen_level, blank_location = 1, filled_blanks = 0): 
    blanks = 4 
    while filled_blanks < blanks: 
     user_input = input("What is your answer for ___" + str(filled_blanks + 1) + "___?") 
     if right_answer(chosen_level, blank_location, user_input): 
      if blank_location >= blanks: 
       print('You have answered them all correctly!') 
       show_new_sentence(chosen_level, blank_location) 
      print('Goodjob! Next blank...') 
      filled_blanks += 1 
      blank_location += 1 
     else: 
      print('Please try again.') 
      fill_in_blanks(chosen_level, blank_location, filled_blanks) 

def right_answer(chosen_level, blank_location, answer): 
    return str(answer) == quiz_answers[chosen_level][blank_location - 1] 

def show_new_sentence(chosen_level, location): 
    replace_location = 1 
    while replace_location <= location: 
     quizzes[chosen_level] = quizzes[chosen_level].replace('___' + str(replace_location) + '___', quiz_answers[chosen_level][replace_location - 1]) 
     replace_location += 1 
    print(quizzes[chosen_level]) 


def game_start(): 
    print('Hello! Welcome to my quiz!') 
    while True: 
     chosen_level = level_chosen() 
     print(quizzes[chosen_level]) 
     fill_in_blanks(chosen_level) 

game_start() 

Answer 1

は、これであなたのlevel_chosen機能を交換してみてください。

def level_chosen(): 
    chosen_level = str(input('Please select a level: easy, medium, hard: ')) 
    if chosen_level == 'easy': 
     print("You have chosen easy. Let's play!") 
     l = [quizzes[0], quiz_answers[0]] 
     return l 

    elif chosen_level == 'medium': 
     print("You have chosen medium. Let's play!") 
     l = [quizzes[1], quiz_answers[1]] 
     return l 

    elif chosen_level == 'hard': 
     print("You have chosen hard. Let's play!") 
     l = [quizzes[2], quiz_answers[2]] 
     return l 

    else: 
     print('Not a valid option. Try again.') 
     return level_chosen() 

関数 'level_chosen'では、戻り値がタプルに変換されています。これを修正するには、 "return item1、item2"を "return list（item1、item2）"または "return [item1、item2]"に置き換えてみてください。

タプルは、重複を含むことはできないが変更することはできない最も単純な形式のリストです。タプルは、2つのオブジェクト間にコンマを置くだけで作成されます。ここでの唯一の問題は、タプルが必要ではなく、リスト（編集可能）を指定することです。あなたのタプルの周りに関数リスト（）を追加すると、リストに変換されます。